Perry Mason - Season 6 Episode 8 The Case of the Stand-In Sister
7.6052 minutes
Two brothers at separate times have claimed the same young girl as their daughter. One brother owns a fleet of tuna boats; the other is a mobster. Then banker Franz Moray reveals that $100,000 due to the girl via a trust fund has been mishandled. When Moray is found murdered Perry steps in and discovers an old family secret.